from typing import Dict, List, Optional
import pandas as pd
import numpy as np
from datetime import datetime
import requests
from web3 import Web3
from config.settings import AnalysisConfig

'''链上数据分析器'''
class ChainAnalyzer:
    """链上数据分析器"""
    
    def __init__(self, config: AnalysisConfig):
        """
        初始化链上数据分析器
        
        Args:
            config: 分析配置
        """
        self.config = config
        self.w3 = Web3(Web3.HTTPProvider(config.ethereum_node_url))
        
    def analyze_network_activity(self, symbol: str) -> Dict:
        """分析网络活动"""
        try:
            # 获取最新区块
            latest_block = self.w3.eth.block_number
            block_data = self.w3.eth.get_block(latest_block)
            
            # 计算网络活动指标
            gas_used_ratio = block_data['gasUsed'] / block_data['gasLimit']
            transaction_count = len(block_data['transactions'])
            
            return {
                'gas_used_ratio': gas_used_ratio,
                'transaction_count': transaction_count,
                'block_number': latest_block,
                'timestamp': datetime.now()
            }
            
        except Exception as e:
            print(f"Error analyzing network activity: {e}")
            return {
                'gas_used_ratio': 0,
                'transaction_count': 0,
                'block_number': 0,
                'timestamp': datetime.now()
            }
            
    def analyze_whale_activity(self, symbol: str, threshold: float = 1000000) -> Dict:
        """分析大户活动"""
        try:
            # 获取大额转账
            # 这里需要实现具体的API调用
            
            return {
                'large_transactions': 0,
                'total_value': 0,
                'unique_addresses': 0,
                'timestamp': datetime.now()
            }
            
        except Exception as e:
            print(f"Error analyzing whale activity: {e}")
            return {
                'large_transactions': 0,
                'total_value': 0,
                'unique_addresses': 0,
                'timestamp': datetime.now()
            }
            
    def analyze_token_metrics(self, token_address: str) -> Dict:
        """分析代币指标"""
        try:
            # 获取代币合约
            token_contract = self.w3.eth.contract(
                address=token_address,
                abi=[]  # 需要提供代币合约ABI
            )
            
            # 获取代币指标
            total_supply = token_contract.functions.totalSupply().call()
            holder_count = 0  # 需要通过API获取
            
            return {
                'total_supply': total_supply,
                'holder_count': holder_count,
                'timestamp': datetime.now()
            }
            
        except Exception as e:
            print(f"Error analyzing token metrics: {e}")
            return {
                'total_supply': 0,
                'holder_count': 0,
                'timestamp': datetime.now()
            }
            
    def analyze_defi_metrics(self, protocol_address: str) -> Dict:
        """分析DeFi指标"""
        try:
            # 获取DeFi协议数据
            # 这里需要实现具体的API调用
            
            return {
                'tvl': 0,
                'volume_24h': 0,
                'unique_users': 0,
                'timestamp': datetime.now()
            }
            
        except Exception as e:
            print(f"Error analyzing DeFi metrics: {e}")
            return {
                'tvl': 0,
                'volume_24h': 0,
                'unique_users': 0,
                'timestamp': datetime.now()
            }
            
    def get_chain_analysis(self, symbol: str) -> Dict:
        """获取综合链上分析结果"""
        # 获取各个维度的链上数据
        network_activity = self.analyze_network_activity(symbol)
        whale_activity = self.analyze_whale_activity(symbol)
        
        # 如果是代币，获取代币指标
        token_metrics = {}
        if symbol != 'ETH/USDT':
            token_address = self.config.token_addresses.get(symbol)
            if token_address:
                token_metrics = self.analyze_token_metrics(token_address)
                
        # 如果是DeFi协议，获取DeFi指标
        defi_metrics = {}
        protocol_address = self.config.protocol_addresses.get(symbol)
        if protocol_address:
            defi_metrics = self.analyze_defi_metrics(protocol_address)
            
        return {
            'network_activity': network_activity,
            'whale_activity': whale_activity,
            'token_metrics': token_metrics,
            'defi_metrics': defi_metrics,
            'timestamp': datetime.now()
        }
